Probability
Maths · Grade 9 · Week 40 · 25 questions
Probability measures how likely an event is to happen, from impossible to certain. Understanding probability helps you make better predictions and informed decisions.
What you'll practise
- Calculate probability of simple events
- Express probability as fractions and percentages
- Distinguish between theoretical and experimental probability
- Solve problems involving combined events
All 25 questions in this Probability quiz
Grade 9 Maths — Probability: 25 practice questions with instant scoring and explanations.
- P(not A) if P(A)=5/9=?
- Event 11/69 trials, probability=?
- Event 47/197 trials, probability=?
- P(not A) if P(A)=6/9=?
- P(not A) if P(A)=7/9=?
- Probability 2 favorable, 18 total=?
- Probability 3 favorable, 18 total=?
- P(A and B), P(A)=5/8, P(B)=1/6=?
- P(not A) if P(A)=4/10=?
- P(not A) if P(A)=8/10=?
- P(not A) if P(A)=8/9=?
- P(A and B), P(A)=5/7, P(B)=1/7=?
- P(not A) if P(A)=7/10=?
- Probability 3 favorable, 19 total=?
- P(A and B), P(A)=4/9, P(B)=4/10=?
- P(A and B), P(A)=1/6, P(B)=1/10=?
- Event 15/190 trials, probability=?
- P(A and B), P(A)=5/7, P(B)=2/8=?
- P(not A) if P(A)=4/9=?
- P(A and B), P(A)=2/7, P(B)=5/10=?
- Event 35/74 trials, probability=?
- P(not A) if P(A)=1/10=?
- P(not A) if P(A)=2/9=?
- Event 25/192 trials, probability=?
- Event 29/111 trials, probability=?
Question 1 of 250 correct so far